ChangeSet 1.831.15.7, 2002/12/06 19:42:39-06:00, [EMAIL PROTECTED]
[PATCH] USB: initial attempt at Treo 300 support for the visor driver
Thanks to Troy Benjegerdes and Jason Carnahan for first cuts at this...
diff -Nru a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
--- a/drivers/usb/serial/visor.c Mon Dec 9 11:41:27 2002
+++ b/drivers/usb/serial/visor.c Mon Dec 9 11:41:27 2002
@@ -175,6 +175,7 @@
static void visor_set_termios (struct usb_serial_port *port, struct termios
*old_termios);
static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs);
static void visor_read_bulk_callback (struct urb *urb, struct pt_regs *regs);
+static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs);
static int clie_3_5_startup (struct usb_serial *serial);
@@ -232,9 +233,9 @@
/* All of the device info needed for the Handspring Visor, and Palm 4.0 devices */
static struct usb_serial_device_type handspring_device = {
.owner = THIS_MODULE,
- .name = "Handspring Visor / Palm 4.0 / Cli� 4.x",
+ .name = "Handspring Visor / Treo / Palm 4.0 / Cli� 4.x",
.id_table = id_table,
- .num_interrupt_in = 0,
+ .num_interrupt_in = NUM_DONT_CARE,
.num_bulk_in = 2,
.num_bulk_out = 2,
.num_ports = 2,
@@ -252,6 +253,7 @@
.chars_in_buffer = visor_chars_in_buffer,
.write_bulk_callback = visor_write_bulk_callback,
.read_bulk_callback = visor_read_bulk_callback,
+ .read_int_callback = visor_read_int_callback,
};
/* device info for the Sony Clie OS version 3.5 */
@@ -320,9 +322,20 @@
port->read_urb->transfer_buffer_length,
visor_read_bulk_callback, port);
result = usb_submit_urb(port->read_urb, GFP_KERNEL);
- if (result)
- err("%s - failed submitting read urb, error %d", __FUNCTION__, result);
+ if (result) {
+ err("%s - failed submitting read urb, error %d",
+ __FUNCTION__, result);
+ goto exit;
+ }
+ if (port->interrupt_in_urb) {
+ dbg("%s - adding interrupt input for treo", __FUNCTION__);
+ result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+ if (result)
+ err("%s - failed submitting interrupt urb, error %d",
+ __FUNCTION__, result);
+ }
+exit:
return result;
}
@@ -358,6 +371,9 @@
}
/* shutdown our bulk read */
usb_unlink_urb (port->read_urb);
+
+ if (port->interrupt_in_urb)
+ usb_unlink_urb (port->interrupt_in_urb);
}
/* Uncomment the following line if you want to see some statistics in your
syslog */
/* info ("Bytes In = %d Bytes Out = %d", bytes_in, bytes_out); */
@@ -523,6 +539,43 @@
return;
}
+static void visor_read_int_callback (struct urb *urb, struct pt_regs *regs)
+{
+ int result;
+
+ switch (urb->status) {
+ case 0:
+ /* success */
+ break;
+ case -ECONNRESET:
+ case -ENOENT:
+ case -ESHUTDOWN:
+ /* this urb is terminated, clean up */
+ dbg("%s - urb shutting down with status: %d",
+ __FUNCTION__, urb->status);
+ return;
+ default:
+ dbg("%s - nonzero urb status received: %d",
+ __FUNCTION__, urb->status);
+ goto exit;
+ }
+
+ /*
+ * This information is still unknown what it can be used for.
+ * If anyone has an idea, please let the author know...
+ *
+ * Rumor has it this endpoint is used to notify when data
+ * is ready to be read from the bulk ones.
+ */
+ usb_serial_debug_data (__FILE__, __FUNCTION__, urb->actual_length,
+ urb->transfer_buffer);
+
+exit:
+ result = usb_submit_urb (urb, GFP_ATOMIC);
+ if (result)
+ err("%s - Error %d submitting interrupt urb",
+ __FUNCTION__, result);
+}
static void visor_throttle (struct usb_serial_port *port)
{
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